public inbox for [email protected]
 help / color / mirror / Atom feed
From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 15/16] io_uring: abolish old io_put_file()
Date: Fri, 19 Mar 2021 17:22:43 +0000	[thread overview]
Message-ID: <dd9b87e6ce4a04d6577b9a7649f753936af9a373.1616167719.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>

io_put_file() doesn't do a good job at generating a good code. Inline
it, so we can check REQ_F_FIXED_FILE first, prioritising FIXED_FILE case
over requests without files, and saving a memory load in that case.

Signed-off-by: Pavel Begunkov <[email protected]>
---
 fs/io_uring.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index b3484cedf1f1..d7b4cbe2ac3a 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1716,10 +1716,9 @@ static struct io_kiocb *io_alloc_req(struct io_ring_ctx *ctx)
 	return state->reqs[state->free_reqs];
 }
 
-static inline void io_put_file(struct io_kiocb *req, struct file *file,
-			  bool fixed)
+static inline void io_put_file(struct file *file)
 {
-	if (!fixed)
+	if (file)
 		fput(file);
 }
 
@@ -1727,8 +1726,8 @@ static void io_dismantle_req(struct io_kiocb *req)
 {
 	unsigned int flags = req->flags;
 
-	if (req->file)
-		io_put_file(req, req->file, (flags & REQ_F_FIXED_FILE));
+	if (!(flags & REQ_F_FIXED_FILE))
+		io_put_file(req->file);
 	if (flags & (REQ_F_NEED_CLEANUP | REQ_F_BUFFER_SELECTED |
 		     REQ_F_INFLIGHT)) {
 		io_clean_op(req);
@@ -3647,7 +3646,8 @@ static int io_tee(struct io_kiocb *req, unsigned int issue_flags)
 	if (sp->len)
 		ret = do_tee(in, out, sp->len, flags);
 
-	io_put_file(req, in, (sp->flags & SPLICE_F_FD_IN_FIXED));
+	if (!(sp->flags & SPLICE_F_FD_IN_FIXED))
+		io_put_file(in);
 	req->flags &= ~REQ_F_NEED_CLEANUP;
 
 	if (ret != sp->len)
@@ -3683,7 +3683,8 @@ static int io_splice(struct io_kiocb *req, unsigned int issue_flags)
 	if (sp->len)
 		ret = do_splice(in, poff_in, out, poff_out, sp->len, flags);
 
-	io_put_file(req, in, (sp->flags & SPLICE_F_FD_IN_FIXED));
+	if (!(sp->flags & SPLICE_F_FD_IN_FIXED))
+		io_put_file(in);
 	req->flags &= ~REQ_F_NEED_CLEANUP;
 
 	if (ret != sp->len)
@@ -5967,8 +5968,8 @@ static void io_clean_op(struct io_kiocb *req)
 			}
 		case IORING_OP_SPLICE:
 		case IORING_OP_TEE:
-			io_put_file(req, req->splice.file_in,
-				    (req->splice.flags & SPLICE_F_FD_IN_FIXED));
+			if (!(req->splice.flags & SPLICE_F_FD_IN_FIXED))
+				io_put_file(req->splice.file_in);
 			break;
 		case IORING_OP_OPENAT:
 		case IORING_OP_OPENAT2:
-- 
2.24.0


  parent reply	other threads:[~2021-03-19 17:28 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-19 17:22 [PATCH 00/16] random 5.13 bits Pavel Begunkov
2021-03-19 17:22 ` [PATCH 01/16] io_uring: don't take ctx refs in task_work handler Pavel Begunkov
2021-03-19 17:22 ` [PATCH 02/16] io_uring: optimise io_uring_enter() Pavel Begunkov
2021-03-19 17:22 ` [PATCH 03/16] io_uring: optimise tctx node checks/alloc Pavel Begunkov
2021-03-19 17:22 ` [PATCH 04/16] io_uring: keep io_req_free_batch() call locality Pavel Begunkov
2021-03-19 17:22 ` [PATCH 05/16] io_uring: inline __io_queue_linked_timeout() Pavel Begunkov
2021-03-19 17:22 ` [PATCH 06/16] io_uring: optimise success case of __io_queue_sqe Pavel Begunkov
2021-03-19 17:22 ` [PATCH 07/16] io_uring: refactor io_flush_cached_reqs() Pavel Begunkov
2021-03-19 17:22 ` [PATCH 08/16] io_uring: refactor rsrc refnode allocation Pavel Begunkov
2021-03-19 17:22 ` [PATCH 09/16] io_uring: inline io_put_req and friends Pavel Begunkov
2021-03-19 17:22 ` [PATCH 10/16] io_uring: refactor io_free_req_deferred() Pavel Begunkov
2021-03-19 17:22 ` [PATCH 11/16] io_uring: add helper flushing locked_free_list Pavel Begunkov
2021-03-19 17:22 ` [PATCH 12/16] io_uring: remove __io_req_task_cancel() Pavel Begunkov
2021-03-19 17:22 ` [PATCH 13/16] io_uring: inline io_clean_op()'s fast path Pavel Begunkov
2021-03-19 17:22 ` [PATCH 14/16] io_uring: optimise io_dismantle_req() " Pavel Begunkov
2021-03-19 17:22 ` Pavel Begunkov [this message]
2021-03-19 17:22 ` [PATCH 16/16] io_uring: optimise io_req_task_work_add() Pavel Begunkov
2021-03-19 18:59 ` [PATCH 00/16] random 5.13 bits Jens Axboe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=dd9b87e6ce4a04d6577b9a7649f753936af9a373.1616167719.git.asml.silence@gmail.com \
    [email protected] \
    [email protected] \
    [email protected] \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox